| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,104,654 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,109 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,362 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,647 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,393 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 295,028 |
| Island Countries Quiz | 0 | - | 4.99 | 576,190 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,806 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,227 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,519 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,427 |
| Countries That Border Russia | 0 | - | 4.98 | 367,509 |
| Communist Countries in History | 0 | - | 4.47 | 382,678 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,174 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,320 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,008 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,264 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,665 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,714 |
| One Border Countries | 0 | - | 4.98 | 358,392 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,463,008 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,248,599 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,021 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,870 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,790 |
| Countries that Start with B | 0 | - | 4.94 | 1,764,323 |
| Countries that Start with C | 0 | - | 4.95 | 1,398,013 |
| Countries that Start with D | 0 | - | 4.96 | 462,555 |
| Countries that Start with E | 0 | - | 4.93 | 1,030,932 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,229 |
| Countries that Start with H | 0 | - | 4.92 | 389,720 |
| Countries that Start with I | 0 | - | 4.90 | 975,198 |
| Countries that Start with J | 0 | - | 4.96 | 392,994 |
| Countries that Start with K | 0 | - | 4.95 | 570,792 |
| Countries that Start with L | 0 | - | 4.98 | 812,012 |
| Countries that Start with N | 0 | - | 4.90 | 833,277 |
| Countries that Start with P | 0 | - | 4.94 | 920,935 |
| Countries that Start with R | 0 | - | 4.41 | 299,142 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,354 |
| Countries that Start with T | 0 | - | 4.89 | 757,723 |
| Countries that Start with U | 0 | - | 4.97 | 683,660 |
| Countries that Start with V | 0 | - | 4.97 | 455,459 |
| Countries that Start with F | 0 | - | 4.76 | 423,045 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,780 |
| Countries in World War II | 0 | - | 4.47 | 679,034 |
| Countries in World War I | 0 | - | 4.92 | 182,561 |
| Countries with Four Letters | 0 | - | 4.99 | 320,758 |
| Countries of Africa | 0 | - | 5.00 | 1,730,098 |
| Countries of South America | 0 | - | 5.00 | 621,689 |
| Countries of North America Quiz | 0 | - | 5.00 | 704,936 |
| Countries of Oceania | 0 | - | 5.00 | 711,149 |
| Vietnam War Countries | 0 | - | 4.78 | 76,573 |
| Countries Bordering France | 0 | - | 4.90 | 308,750 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,821 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,039 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,233 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,815 |
| Countries "Ruled" by King Charles III | 0 | - | 4.73 | 64,979 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,948 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,895 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,457 |
| Independence from Whom | 0 | - | 4.99 | 152,744 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,440 |
| Political Movements by Country | 0 | - | 4.49 | 61,874 |
| "Land" Countries | 0 | - | 4.98 | 264,556 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,504 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,189 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,483 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,869 |
| Biggest Cities in History | 0 | - | 4.49 | 70,418 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,504 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,766 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,262 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,279 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,346 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,172 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,145 |
| Historical City to Country | 0 | - | 4.81 | 66,314 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,673 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,628 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,696 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,021 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,320,178 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,814 |
| Biggest European Cities by Century | 0 | - | 4.96 | 104,967 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,509 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 81,652 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 71,875 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 119,079 |
| Former Countries | 0 | - | 4.52 | 100,290 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,165 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,397 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 54,662 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 92,805 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.91 | 57,506 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 56,868 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,805 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 117,123 |
| Five Most Guessed Countries by Continent | 0 | - | 4.93 | 134,098 |
| Five Least Guessed Countries by Continent | 0 | - | 4.92 | 49,256 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 88,265 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 92,375 |
| Five Richest Countries by Continent | 0 | - | 4.53 | 158,620 |
| Five Poorest Countries by Continent | 0 | - | 4.96 | 143,527 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,100 |
| Guerrillas by Country | 0 | - | 4.42 | 34,835 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.87 | 53,689 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,565 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 111,906 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,717 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,324 |
| Five Highest HDI Countries by Continent | 0 | - | 4.46 | 47,564 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,798 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,548 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.56 | 68,276 |
| Every Country Shape | 0 | - | 4.99 | 312,752 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,873,889 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,302 |
| Five Biggest Economies by Continent | 0 | - | 4.97 | 144,079 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,269 |
| Countries with Megacities | 0 | - | 4.99 | 175,218 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,225 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,978 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 126,893 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,179 |
| Five Lowest HDI Countries by Continent | 0 | - | 4.65 | 43,552 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,642,158 |
| Five Countries with Most Christians by Continent | 0 | - | 4.98 | 70,109 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,494 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,776 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,814 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,601 |
| Most Populous Countries in 1800 | 0 | - | 4.25 | 33,005 |
| Most Populous Countries by Year | 0 | - | 4.76 | 78,892 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,151 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,026 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.94 | 92,094 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 50,404 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 85,485 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.98 | 71,935 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 83,475 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 124,798 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,765 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,753 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,381 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,868 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,460 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,801 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,352 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,238 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 75,886 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 86,916 |
| Five Countries by a Single Word by Continent | 0 | - | 4.88 | 37,624 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,216 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,318 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,439 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,223 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,317 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,857 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,858 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,211 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.52 | 43,284 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,351 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,958 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,127 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,560 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,954 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 85,942 |
| Countries with the Most People Bordering Them | 0 | - | 4.96 | 66,282 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.47 | 39,929 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,964 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,897 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,407 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.92 | 44,816 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,551 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 58,324 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,228 |
| Random Flag to Country | 0 | - | 4.99 | 387,097 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,961 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,559 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,092,166 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.91 | 49,938 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,180 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,659 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,734 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,271 |
| Densest Countries Bordering Each Other | 0 | - | 4.88 | 57,428 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,148 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 83,331 |
| Battle to Country | 0 | - | 4.89 | 30,530 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 66,907 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,638 |
| Countries by Former Name | 0 | - | 4.99 | 82,479 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 58,619 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 5,486,367 |
| Vatican City Country Quiz | 0 | - | 4.47 | 31,762 |
| World Map with 10 Random Extra Borders | 0 | - | 4.97 | 259,963 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 379,983 |
| Biggest Cities in the Confederate States in 1860 | 0 | - | 4.43 | 19,580 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 36,758 |
